List of top Biology Questions

Write short notes on the following: Effect of invasive alien species
Endangered species and their conservation
Comment on the following: Auto-immune disease Opioids
Comment upon the following: Infectious diseases
Describe gel electrophoresis technique in brief.
Who propounded the chromosomal theory of inheritance?
Name the food chain which begins with dead and decaying organic matter.
Give an example where more than two alleles govern the same character.
Which of the following methods is used to introduce foreign DNA into the host cells?
Who among the following proposed that evolution of life forms occurred due to use and disuse of organs?
Which of the following is a non-infectious disease?
Which hormone is secreted by corpus luteum?
What are stem cells?
Pollen grains are well preserved as fossils because of the presence of which of the following?
Describe the dihybrid cross with the help of a checker-board.

Write short notes on the following: 

(i) Bioinformatics 

(ii) Amniocentesis

Write a note on seven contrasting traits studied by Mendel in pea plants.
Differentiate between Phenotype and Genotype.
Write a short note on over-exploitation and co-extinction.
Write a note on allergy.
Describe the symptoms of Pneumonia and Amoebiasis.
What is genetic engineering? Write any two applications of genetic engineering.
Describe mutation with an example.
Define productivity in an ecosystem.
Write any two differences between DNA and RNA.